/**
 * Copyright 2010-present Facebook
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.facebook.android;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;

@SuppressWarnings("deprecation")
public class SessionStore {

    private static final String TOKEN = "access_token";
    private static final String EXPIRES = "expires_in";
    private static final String LAST_UPDATE = "last_update";
    private static final String KEY = "facebook-session";
    private static final String DONT_ASK = "saveDont-AskIfNotLoginFb";
    
    private static final String DISPLAY_NAME = "save-DISPLAY_NAME";
    private static final String AVATAR_LINK = "save-AVATAR_LINK";

    public static void saveDontAskIfNotLoginFb(Context context, boolean enable){
    	 Editor editor = context.getSharedPreferences(DONT_ASK, Context.MODE_PRIVATE).edit();
    	 editor.putBoolean(DONT_ASK, enable);
    	 editor.commit();
    }
    
    
    public static boolean loadDontAskIfNotLoginFb(Context context){
    	SharedPreferences savedSession = context.getSharedPreferences(DONT_ASK, Context.MODE_PRIVATE);
    	return savedSession.getBoolean(DONT_ASK, false);
    }
//=========================================================
    public static void saveInfoFaceBook(Context context,String displayname, String avatar){
    	 Editor editor = context.getSharedPreferences(DONT_ASK, Context.MODE_PRIVATE).edit();
    	 editor.putString(DISPLAY_NAME, displayname);
    	 editor.putString(AVATAR_LINK, avatar);
    	 editor.commit();
    }
    
    public static String[] loadInfoFaceBook(Context context){
    	SharedPreferences savedSession = context.getSharedPreferences(DONT_ASK, Context.MODE_PRIVATE);
    	String name = savedSession.getString(DISPLAY_NAME, "");
    	String avatarlink = savedSession.getString(AVATAR_LINK, "");
    	if(name != null && !"".equals(name) 
    			&& avatarlink != null && !"".equals(avatarlink))
    		return new String [] {name,avatarlink};
    	return null;
    }
    /*
     * Save the access token and expiry date so you don't have to fetch it each
     * time
     */
    public static boolean save(Facebook session, Context context) {
        Editor editor = context.getSharedPreferences(KEY, Context.MODE_PRIVATE).edit();
        System.out.println("TOKEN "+session.getAccessToken());
        System.out.println("EXPIRES "+session.getAccessExpires());
        System.out.println("LAST_UPDATE "+session.getLastAccessUpdate());
        
        editor.putString(TOKEN, session.getAccessToken());
        editor.putLong(EXPIRES, session.getAccessExpires());
        editor.putLong(LAST_UPDATE, session.getLastAccessUpdate());
        return editor.commit();
    }

    /*
     * Restore the access token and the expiry date from the shared preferences.
     */
    public static boolean restore(Facebook session, Context context) {
        SharedPreferences savedSession = context.getSharedPreferences(KEY, Context.MODE_PRIVATE);
        System.out.println("LOAD TOKEN "+ savedSession.getString(TOKEN, null));
        System.out.println("LOAD EXPIRES "+savedSession.getLong(EXPIRES, 0));
        System.out.println("LOAD LAST_UPDATE "+savedSession.getLong(LAST_UPDATE, 0));
        session.setTokenFromCache(
                savedSession.getString(TOKEN, null),
                savedSession.getLong(EXPIRES, 0),
                savedSession.getLong(LAST_UPDATE, 0));
        if(!session.isSessionValid()){
        	System.out.println("TOKEN LOAD AGAIN");
        	session.setAccessToken(savedSession.getString(TOKEN, null));
        	session.setAccessExpires(savedSession.getLong(EXPIRES, 0));        	
        }
        
        return session.isSessionValid();
    }

    public static void clear(Context context) {
        Editor editor = context.getSharedPreferences(KEY, Context.MODE_PRIVATE).edit();
        editor.clear();
        editor.commit();
    }

}
